Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsTMP175AID

FEATURES

D 27 ADDRESSES (TMP175)

8 ADDRESSES (TMP75)

D DIGITAL OUTPUT: Two-Wire Serial Interface

D RESOLUTION: 9- to 12-Bits, User-Selectable

D ACCURACY:

±1.5°C (max) from −25°C to +85°C

±2.0°C (max) from −40°C to +125°C

D LOW QUIESCENT CURRENT:

50µA, 0.1µA Standby

D WIDE SUPPLY RANGE: 2.7V to 5.5V

D SMALL SO-8 AND MSOP-8 PACKAGES

APPLICATIONS

D POWER-SUPPLY TEMPERATURE

MONITORING

D COMPUTER PERIPHERAL THERMAL

PROTECTION

D NOTEBOOK COMPUTERS

D CELL PHONES

D BATTERY MANAGEMENT

D OFFICE MACHINES

D THERMOSTAT CONTROLS

D ENVIRONMENTAL MONITORING AND HVAC

D ELECTROMECHANICAL DEVICE

TEMPERATURE

DESCRIPTION

The TMP175 and TMP75 are two-wire, serial output

temperature sensors available in SO-8 and MSOP-8

packages. Requiring no external components, the

TMP175 and TMP75 are capable of reading temperatures

with a resolution of 0.0625°C.

The TMP175 and TMP75 feature a Two-Wire interface that

is SMBus-compatible, with the TMP175 allowing up to 27

devices on one bus and the TMP75 allowing up to eight

devices on one bus. The TMP175 and TMP75 both feature

an SMBus Alert function.

The TMP175 and TMP75 are ideal for extended

temperature measurement in a variety of communication,

computer, consumer, environmental, industrial, and

instrumentation applications.

The TMP175 and TMP75 are specified for operation over

a temperature range of −40°C to +125°C.

Diode

Te m p .

Sensor

∆Σ

A/D

Converter

OSC

Control

Logic

Serial

Interface

Config.

and Temp.

TMP175, TMP75

Temperature

ALERT

SDA

GND

V+

SCL

TMP175

TMP75

SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007

Digital Temperature Sensor

with Two-Wire Interface

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Summary of content (21 pages)

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TMP175 TMP75 SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 Digital Temperature Sensor with Two-Wire Interface FEATURES D 27 ADDRESSES (TMP175) 8 ADDRESSES (TMP75) DIGITAL OUTPUT: Two-Wire Serial Interface RESOLUTION: 9- to 12-Bits, User-Selectable D D D ACCURACY: D ±1.5°C (max) from −25°C to +85°C ±2.0°C (max) from −40°C to +125°C LOW QUIESCENT CURRENT: 50µA, 0.1µA Standby WIDE SUPPLY RANGE: 2.7V to 5.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ABSOLUTE MAXIMUM RATINGS(1) Power Supply, V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0V Input Voltage(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5V to 7.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 ELECTRICAL CHARACTERISTICS At TA = −40°C to +125°C, and V+ = 2.7V to 5.5V, unless otherwise noted. TMP175 PARAMETER CONDITION MIN TYP TMP75 MAX MIN +125 −40 TYP MAX UNITS TEMPERATURE INPUT +125 °C −25°C to +85°C ±0.5 ±1.5 ±0.5 ±2.0 °C −40°C to +125°C ±1.0 ±2.0 ±1.0 ±3.0 °C 0.2 ±0.5 0.2 ±0.5 °C/V Range −40 Accuracy (Temperature Error) vs Supply Resolution(1) Selectable +0.0625 +0.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 TYPICAL CHARACTERISTICS At TA = +25°C and V+ = 5.0V, unless otherwise noted. SHUTDOWN CURRENT vs TEMPERATURE QUIESCENT CURRENT vs TEMPERATURE 1.0 85 0.9 75 0.8 0.7 0.6 V+ = 5V ISD (µA) IQ (µA) 65 55 0.5 0.4 0.3 45 0.2 V+ = 2.7V 0.1 35 0.0 Serial Bus Inactive −0.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 APPLICATIONS INFORMATION Pointer Register The TMP175 and TMP75 are digital temperature sensors that are optimal for thermal management and thermal protection applications. The TMP175 and TMP75 are Two-Wire and SMBus interface-compatible, and are specified over a temperature range of −40°C to +125°C.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 TEMPERATURE (°C) DIGITAL OUTPUT (BINARY) HEX 128 0111 1111 1111 7FF 127.9375 0111 1111 1111 7FF 100 0110 0100 0000 640 80 0101 0000 0000 500 75 0100 1011 0000 4B0 50 0011 0010 0000 320 25 0001 1001 0000 190 0.25 0000 0000 0100 004 0 0000 0000 0000 000 −0.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 resolution or faster conversion time. Table 8 identifies the Resolution Bits and the relationship between resolution and conversion time. R1 R0 RESOLUTION CONVERSION TIME (typical) 0 0 9 Bits (0.5°C) 27.5ms 0 1 10 Bits (0.25°C) 55ms 1 0 11 Bits (0.125°C) 110ms 1 1 12 Bits (0.0625°C) 220ms Table 8. Resolution of the TMP175 and TMP75 ONE-SHOT (OS) The TMP175 and TMP75 feature a One-Shot Temperature Measurement Mode.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 The TMP175 features three address pins to allow up to 27 devices to be addressed on a single bus interface. Table 11 describes the pin logic levels used to properly connect up to 27 devices. ‘1’ indicates the pin is connected to the supply (VCC); ‘0’ indicates the pin is connected to GND; Float indicates the pin is left unconnected.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 When reading from the TMP175 and TMP75, the last value stored in the Pointer Register by a write operation is used to determine which register is read by a read operation. To change the register pointer for a read operation, a new value must be written to the Pointer Register. This is accomplished by issuing a slave address byte with the R/W bit LOW, followed by the Pointer Register Byte. No additional data is required.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 TIMING DIAGRAMS Data Transfer: The number of data bytes transferred between a START and a STOP condition is not limited and is determined by the master device. The receiver acknowledges the transfer of data. The TMP175 and TMP75 are Two-Wire and SMBus compatible. Figure 4 to Figure 8 describe the various operations on the TMP175 and TMP75. Bus definitions are given below. Parameters for Figure 4 are defined in Table 13.
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" #$% " $% www.ti.com SBOS288J − JANUARY 2004 − REVISED DECEMBER 2007 1 9 9 1 … SCL SDA 1 0 0 1 A2 A1 A0 R/W Start By Master 0 0 0 0 0 0 P1 … P0 ACK By TMP75 ACK By TMP75 Frame 2 Pointer Register Byte Frame 1 Two−Wire Slave Address Byte 1 9 1 9 SCL (Continued) SDA (Continued) D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 ACK By TMP75 ACK By TMP75 Stop By Master Frame 4 Data Byte 2 Frame 3 Data Byte 1 Figure 5.
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" #$% " $% www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TMP175AIDGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TMP175AIDGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.3 1.3 8.0 12.0 Q1 TMP175AIDGKT VSSOP DGK 8 250 180.0 12.4 5.3 3.3 1.3 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TMP175AIDGKR VSSOP DGK 8 2500 366.0 364.0 50.0 TMP175AIDGKR VSSOP DGK 8 2500 370.0 355.0 55.0 TMP175AIDGKT VSSOP DGK 8 250 195.0 200.0 45.0 TMP175AIDGKT VSSOP DGK 8 250 366.0 364.0 50.0 TMP175AIDR SOIC D 8 2500 367.0 367.0 35.0 TMP75AIDGKR VSSOP DGK 8 2500 366.0 364.0 50.
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